| <!-- |
| |
| /* |
| ** Copyright (c) 2016 The Khronos Group Inc. |
| ** |
| ** Permission is hereby granted, free of charge, to any person obtaining a |
| ** copy of this software and/or associated documentation files (the |
| ** "Materials"), to deal in the Materials without restriction, including |
| ** without limitation the rights to use, copy, modify, merge, publish, |
| ** distribute, sublicense, and/or sell copies of the Materials, and to |
| ** permit persons to whom the Materials are furnished to do so, subject to |
| ** the following conditions: |
| ** |
| ** The above copyright notice and this permission notice shall be included |
| ** in all copies or substantial portions of the Materials. |
| ** |
| ** THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
| ** EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
| ** MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. |
| ** IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY |
| ** CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, |
| ** TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE |
| ** MATERIALS OR THE USE OR OTHER DEALINGS IN THE MATERIALS. |
| */ |
| |
| --> |
| <!DOCTYPE html> |
| <html> |
| <head> |
| <meta charset="utf-8"> |
| <link rel="stylesheet" href="../../resources/js-test-style.css"/> |
| <script src="../../js/js-test-pre.js"></script> |
| <script src="../../js/webgl-test-utils.js"></script> |
| <script src="../../js/tests/canvas-tests-utils.js"></script> |
| <script> |
| |
| function init() |
| { |
| description("Tests behavior under a restored context for OffscreenCanvas."); |
| |
| if (!window.OffscreenCanvas) { |
| testPassed("No OffscreenCanvas support"); |
| finishTest(); |
| return; |
| } |
| |
| if (!setupTest()) { |
| testFailed("Cannot initialize test"); |
| finishTest(); |
| return; |
| } |
| |
| canvas.addEventListener("webglcontextlost", function(e) { |
| if (!testLostContext(e)) { |
| testFailed("Some test failed"); |
| finishTest(); |
| return; |
| } |
| // restore the context after this event has exited. |
| setTimeout(function() { |
| // we didn't call prevent default so we should not be able to restore the context |
| if (!compareGLError(gl.INVALID_OPERATION, "WEBGL_lose_context.restoreContext()")) { |
| testFailed("Some test failed"); |
| finishTest(); |
| return; |
| } |
| testLosingAndRestoringContext().then(function() { |
| testPassed("Test passed"); |
| finishTest(); |
| return; |
| }, function() { |
| testFailed("Some test failed"); |
| finishTest(); |
| return; |
| }); |
| }, 0); |
| }); |
| canvas.addEventListener("webglcontextrestored", function() { |
| testFailed("Some test failed"); |
| finishTest(); |
| return; |
| }); |
| allowRestore = false; |
| contextLostEventFired = false; |
| contextRestoredEventFired = false; |
| |
| if (!testOriginalContext()) { |
| testFailed("Some test failed"); |
| finishTest(); |
| return; |
| } |
| WEBGL_lose_context.loseContext(); |
| // The context should be lost immediately. |
| shouldBeTrue("gl.isContextLost()"); |
| shouldBe("gl.getError()", "gl.CONTEXT_LOST_WEBGL"); |
| shouldBe("gl.getError()", "gl.NO_ERROR"); |
| // gl methods should be no-ops |
| shouldBeTrue(compareGLError(gl.NO_ERROR, "gl.blendFunc(gl.TEXTURE_2D, gl.TEXTURE_CUBE_MAP)")); |
| // but the event should not have been fired. |
| shouldBeFalse("contextLostEventFired"); |
| } |
| |
| </script> |
| </head> |
| <body onload="init()"> |
| <div id="description"></div> |
| <div id="console"></div> |
| </body> |
| </html> |
